Attachment for printing presses



Jan. 17', 1933. c. s. CARLSON ATTACHMENT FOR PRINTING PRESSES Filed Oct.29. 1930 q INVENTOR 672 r /e5 C al'ison ATTORNEY Patented Jan. 17, 1933PATENT OFFICE CHARLES S. OAIELLSON, F DUMONT, NEW JERSEY ATTACHMENT FOBPRINTING PRESSES Application filed Gotober 29, 1930. Serial No. 492,064.

This invention relates to an improved attachment for printing presses,an object of the invention being to provide an attachment which may beoperatively connected to the printing press and function to insure aproper longitudinal feeding of the paper during the slicing operationand after said operation, so as to prevent any lateral movement of thecut sheets.

F or convenience in binding, it is necessary to cut or slice a widesheet of paper as it is fed from the printing press, and withconstructions heretofore known the two halves of the slit sheet have atendency toward sidewise or lateral movement which precludes thepossibility of perfect work.

It is the broad idea of my invention to provide a means which will causethe two halves or sections to run longitudinally after they are cut orsliced.

While my invention is particularly adapted for use in connection withwhat is known as an extension delivery fiat bed press, I do not wish tobe limited to the use of the attachment in connection with any particular press as it is obvious that its utility is unlimited.

With these and other objects in view, the invention consists in certainnovel features 30 of construction and combinations and arrangements ofparts, all of which will be more fully hereinafter described and pointedout in the claims,

In the accompanying drawing- Figure 1 is a fragmentary view in sideelevation, showing my improved attachment in operative position on aprinting press;

Figure 2 is a view in transverse section on the line 22 of Figure 1; and40 Figure 3 is a fragmentary plan view showing the presser rollers andtheir mounting.

Throughout the drawing the several fea-, tures of constructionconstituting my improved attachment are shaded, while the other featuresof construction illustrating a standard type of press are left unshaded.

The reference character A is employed to indicate a printing press, 1 aprinting roll constituting part of the press, and 2-2 are armsconstituting a part of the press or frame structure.

3 and 4- represent upper and lower endless tapes between which the papersheet 5 is fed. The upper tapes 3 at their inner ends are mounted on aroller 6, and the lower tapes 4: are positively driven by a roller 7which is in advance of the roller 6, as clearly indicated in Figure 1 ofthe drawing. 8 indicates more or less diagrammatically a slicer whichslices the sheet 5 longitudinally as it is fed from the press to aposition between the tapes 3 and 4.

My improved attachment includes a pair of brackets 9 which are securedby bolts 10 to the arms 2 of the printing press, and have laterallyprojecting lugs 12 thereon in which set-screws 13 are mounted and bearagainst the upper and lower faces of the arms 2 to permit a limitedpivotal adjustment of the bracket-arms 9. These arms 9-extend upwardlyand at their free ends support a rod 14 which may be secured therein inany desired manner.

On the rods 1% arms 15 are mounted anc carry at their free ends rollers16 which bear upon the paper sheet 5 and press the same against a roll17 located below the same and between the runs of the lower endless tape4-. This roll 17 has trunnions 18 at its ends, which are mounted to turnin brackets 19. The brackets 19 are of somewhat angular form, pivotallysupported between their ends and having fingers 20 thereon, withsetscrews 21 in the fingers engaging the under faces of fixed portionsof the printing press so as to permit of certain angular adjust ment ofthese brackets 19 to proper position the roll 17. The roll 17 is of thesame diameter as the tape roll 7, and a sprocket chain 22 connectssprocket wheels 23 and 24 fixedly secured on the roll 17 and roll 7respectively, so as to insure a positive driving movement of both rollsat the same speed.

It is desirable that there be an adjustment so asto give the propertension or frictional engagement to the rollers 16 against the paper,and with this idea in view I have illustrated set-screws 25 fer securingthe arms 15 on the rod 14 at any desired angle rela-- tit e to bracketarms 9, and as the latter is alsoiadjusted through the medium of itssetscrews 13 the pressure may be regulated to exactly suit conditions.In any event it is necessary that the pressure be such as to hold thetwo sections of the slit sheet against the possibility of lateralmovement, and hence it is preferable to have the rollers 16 relativelyclose to the slit portions of the sheet, as shown clearly in Figure 2.

When the printing press is equipped with In improved attachment thesheet can be slit longitudinally as it is fed from the press, and thesections thereof will be compelled to move in perfect alignment so as toprevent any possibility of lateral movement of the sections andconsequent bad results in folding thereafter.

While I have illustrated what I believe to be the preferred embodimentof my invention, it is to be distinctly understood that various slightchanges may be made with regard to the form and arrangement of partswithout departing from my invention, and hence I do not limit myself tothe precise details set forth but consider myself at liberty to makesuch changes and alterations as fairly fall within the spirit and scopeof the claims.

What I claim is:

1. An attachment for printing presses, including a slicer, a roll overwhich the sliced paper is fed, pressure rollers engaging the paper abovethe roll and rotatable thereby and located at opposite sides of theslice and compelling both sections to move longitudinally and preventinglateral movement thereof, endless tapes between which the paper is fedover the roll, the rolls supporting and imparting motion to the tapes,and a sprocket chain connecting the sprocket wheels on one of the taperolls with the first mentioned roll.

2. The combination with a printing press having a slicer thereon, of anattachment for guiding and conveying sheets of paper from the pressafter the sheets have been sliced, said attachment including anendless-belt conveyor comprising rollers and endless tapes mounted onsaid rollers, an adjustable bracket, an additional roller carried bysaid bracket intermediate one pair of conveyor rollers and movable withsaid bracket for position ing said roller, means for rotating saidrollers at the same speed, and pressure rollers located above saidintermediate roller and adjustably spaced therefrom for receiving thesliced portions of paper therebet-ween, said pressure rollers beingparallel with the slice and adjacent thereto for preventing lateraldivergent movement of the sliced portions and for urging the samepositively against said endless tapes and intermediate roller, saidpressure rollers being rotatable with said intermediate roller forforwarding the separated portions of the paper.

A printing-press attachment for slicing unconnected individual pieces ofsheet material, including a slicer, a roll over which the sliced piecesof material is fed, alined pressure rollers rotatable in parallel planesand engaging the sliced portions of the individual pieces of materialabove the roll and rotatable thereby, said pressure rollers beinglocated at opposite sides of and adjacent the slice and compelling thesliced portions of the individual pieces to move longitudinally andpreventing lateral movement thereof, and means for positively turningthe roll at the speed of the moving material.

CHARLES S. CARLSON.

